DA Surveying provides our clients with a service from the initial design phase of a project through to final quality documentation and lot closure. Some of our capabilities are as follows:
Control Networks
Detailed Site Survey
Utility and Asset Mapping
Buildings and Structural Setout and Work as Executed
Earthworks/Volumetric Surveys
Roads and Railway Construction Survey
3d Civil BIM and As-Built Data Models
Control Networks are a series of survey marks which are established regarding the NSW Survey Infrastructure. These networks are used to calculate Easting, Northing and Elevation. It is important to install a robust control network for construction projects as all construction which follows will relate directly to this network and thus the State Survey Network.
Detailed Site Survey
Detailed site surveys are generally undertaken prior to construction for use by Architects, Designers and Engineers to plan and design a new construction project. A detailed Site survey may include things such as Natural- Surfaces, Contour lines, fencing, services, structures, Trees, vegetation and any other existing feature. A detailed site survey can be provided in digital 2d plans (PDF and DWG) or in digital 3d models depending on the client’s needs.
Utility and Asset Mapping
In todays condensed urban environments a lot of the services we take for granted are hidden from view, services such as Sewerage, Drainage, Electrical and Communications and Hydraulics are all buried under the ground, its important that these services are surveyed and mapped during construction for future purposes.
Building and Structural Setout and Work as Executed.
Structural Setout is the process of marking points, lines and offsets on the ground or on pegs for the purposes of constructing structural elements. These marks are placed at convenient locations for the constructors to accurately build the item in the correct position and height and within the specified tolerances. Structural Setout relates to all structural works such as concrete slabs, walls, retaining structures, cast in-situ pits, bridge element such as abutments, piers, decks and structural steel. During the construction process we also undertake pre-pour surveys to confirm that a structural item is in the correct location and conforms to the tolerances. Post construction work as executed surveys are made confirming the position and height of any element. Final Work as Executed Plans are generated making direct comparisons to the design and the items conformity.
Earthworks and Volumetric Surveys
Earthworks Surveys may be utilised to plan, monitor and confirm volumes of materials throughout the course of a project. We use the most up to date GPS units, Total Stations and Drone imagery to survey a site for earthworks purposes. Our plethora of Software packages makes ease of processing large amounts of survey data and making accurate volumetric calculations and comparisons to design.
Roads and Railway Construction Surveys
Roads construction surveying adopts similar field methods and processes as structural Setout and work as executed, but instead of the survey being related to a structure the survey is referenced to an Alignment by chainage and offset. Utilising the latest survey instruments and software such as Leica Total Stations, 12d Model and 12d Field, DA Surveying can Setout and conform all elements of pavement construction such as formation, pavement layers, kerb and gutter, drainage networks, barrier systems, line marking and the rest.
3d Civil Building Information Models and 3d As-built Data Models BIM-Building Information Models have long standing been utilised in High rise Design and construction, in recent years we are seeing prevalence of the development of what has come to be known as Civil BIM for civil construction projects. Software such as Navisworks are revolutionising the clarity a construction team has at hand in seeing all aspects of a project combined and in three dimensions. DA Surveying apply the same concept to the Construction model the As-built data sets into Three dimensional as constructed models.